[INFO] updating cached repository brandonaut/trello-set-list
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brandonaut/trello-set-list
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brandonaut/trello-set-list" "work/ex/clippy-test-run/sources/stable/gh/brandonaut/trello-set-list"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/brandonaut/trello-set-list'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brandonaut/trello-set-list" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonaut/trello-set-list"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonaut/trello-set-list'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ba4567d5d9d0eed27d8c9cd06f1c33eb2e477392
[INFO] sha for GitHub repo brandonaut/trello-set-list: ba4567d5d9d0eed27d8c9cd06f1c33eb2e477392
[INFO] validating manifest of brandonaut/trello-set-list on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brandonaut/trello-set-list on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing brandonaut/trello-set-list
[INFO] finished frobbing brandonaut/trello-set-list
[INFO] frobbed toml for brandonaut/trello-set-list written to work/ex/clippy-test-run/sources/stable/gh/brandonaut/trello-set-list/Cargo.toml
[INFO] started frobbing brandonaut/trello-set-list
[INFO] finished frobbing brandonaut/trello-set-list
[INFO] frobbed toml for brandonaut/trello-set-list written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonaut/trello-set-list/Cargo.toml
[INFO] crate brandonaut/trello-set-list has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting brandonaut/trello-set-list against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/brandonaut/trello-set-list:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 896a02f5d52d24d0edb92f024a57e2cf7c9106c26e7b3ea974b3d21392c67e1e
[INFO] running `"docker" "start" "-a" "896a02f5d52d24d0edb92f024a57e2cf7c9106c26e7b3ea974b3d21392c67e1e"`
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking trello-set-list v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: calling `.extend(_.chars())`
[INFO] [stderr]    --> src/main.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         markdown_contents.extend(formatted_item.chars());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `markdown_contents.push_str(&formatted_item)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_extend_chars)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_extend_chars
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |         outfile.write(markdown_contents.as_bytes())?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 | /         outfile.write(textwrap::dedent("
[INFO] [stderr] 167 | |             <head>
[INFO] [stderr] 168 | |                 <style>
[INFO] [stderr] 169 | |                 h2   {font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;}
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |             </head>
[INFO] [stderr] 174 | |         ").as_bytes())?;
[INFO] [stderr]     | |_______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         outfile.write(html_contents.as_bytes())?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `trello-set-list`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: calling `.extend(_.chars())`
[INFO] [stderr]    --> src/main.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         markdown_contents.extend(formatted_item.chars());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `markdown_contents.push_str(&formatted_item)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_extend_chars)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_extend_chars
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |         outfile.write(markdown_contents.as_bytes())?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 | /         outfile.write(textwrap::dedent("
[INFO] [stderr] 167 | |             <head>
[INFO] [stderr] 168 | |                 <style>
[INFO] [stderr] 169 | |                 h2   {font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;}
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |             </head>
[INFO] [stderr] 174 | |         ").as_bytes())?;
[INFO] [stderr]     | |_______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         outfile.write(html_contents.as_bytes())?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `trello-set-list`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "896a02f5d52d24d0edb92f024a57e2cf7c9106c26e7b3ea974b3d21392c67e1e"`
[INFO] running `"docker" "rm" "-f" "896a02f5d52d24d0edb92f024a57e2cf7c9106c26e7b3ea974b3d21392c67e1e"`
[INFO] [stdout] 896a02f5d52d24d0edb92f024a57e2cf7c9106c26e7b3ea974b3d21392c67e1e